Pill Identification by Imprints: M 522 Home Pill Identification by Imprints: M 522 0 results Nothing Found!!! Other Popular Drug Imprint US ProV 5136 T21 NP 13 B 35 K 57 M 147 N192 42 AC39 L 67 P5 V403 CORGARD 80 NTBC 2 mg M D11 AMB 10 L100 MYLAN 457 543 N20 L421 C P HP 531 logo and 100 mg 150 305 S44 N 740 STO 150 CY C5 557 NL 950 WATSON 411 N 598 93 784 N050 MYLAN 531 US 12